(2) ·---------------· | | | | ·---|---· | | |(O)|(I)| | |---|---|---|---| | |(O)| | | | ·---|---· | | | | ·---------------· In the N.W. Quarter, we have not enough information to use. In the N.E. Quarter, we find a "I". This shows us that it is _occupied_: so we may mark the N.E. Quarter on the Biliteral Diagram with a "I". ·-------· | |(I)| |---|---| | | | ·-------· In the S.W. Quarter, we have not enough information to use. In the S.E. Quarter, we have none at all. We may read off the result as "Some x are y'", or "Some y' are x", whichever we prefer. pg055 (3) ·---------------· | | | | ·---|---· | | | |(O)| | |---|(I)|---|---| | | |(O)| | | ·---|---· | |(O) | (O)| ·---------------· In the N.W. Quarter, we have _no_ information. (The "I", sitting on the fence, is of no use to us until we know on _which_ side he means to jump down!) In the N.E. Quarter, we have not enough information to use. Neither have we in the S.W. Quarter. ·-------· | | | |---|---| | |(O)| ·-------· The S.E. Quarter is the only one that yields enough information to use. It is certainly _empty_: so we mark it as such on the Biliteral Diagram. We may read off the results as "No x' are y'", or "No y' are x'", whichever we prefer. (4) ·---------------· |(O) | | | ·---|---· | | |(I)| | | |---|---|---|---| | |(O)|(O)| | | ·---|---· | |(O) | | ·---------------· The N.W. Quarter is _occupied_, in spite of the "O" in the Outer Cell. So we mark it with a "I" on the Biliteral Diagram. The N.E. Quarter yields no information. ·-------· |(I)| | |---|---| | | | ·-------· The S.W. Quarter is certainly _empty_. So we mark it as such on the Biliteral Diagram. ·-------· |(I)| | |---|---| |(O)| | ·-------· The S.E. Quarter does not yield enough information to use. We read off the result as "All y are x."] [Review Tables V, VI (pp. 46, 47). Work Examples § =1=, 13-16 (p. 97); § =2=, 21-32 (p. 98); § =3=, 1-20 (p. 99).] pg056 BOOK V. SYLLOGISMS. CHAPTER I. _INTRODUCTORY_ When a Trio of Biliteral Propositions of Relation is such that (1) all their six Terms are Species of the same Genus, (2) every two of them contain between them a Pair of codivisional Classes,